In a surface burst large quantities of earth or water enter the fireball at an early stage and are fused or vaporized.
表面爆炸时，一开始便有大量的泥土或水份被卷入火球中，并熔化或汽化。
In a surface burst large quantities of earth or water enter the fireball at an early stage and are fused or vaporized.
表面爆炸时，一开始便有大量的泥土或水份被卷入火球中，并熔化或汽化。
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